Added the System Clock.
Added SCB and Edited SysDatabase to not use constructor for search
Completed SCB, Process Dispatch, Process Deployment, Keypad Scan and SysInitial
Updated SCB
Added functionality for Welcome
Finished Implementation of SystemFailure and Check PIN
PM3- InputWithdrawAmount
PM4 Verify Balance
PM5 Verify bills availability
Merge remote-tracking branch 'origin/Mandip'

Conflicts:
	SENG523ATM/SCB.cs
Merge remote-tracking branch 'origin/master'

Conflicts:
	SENG523ATM/SCB.cs